Flat shifting

gozza · 07-09-2005, 03:07 PM

this is shifting with out thw clutch right?
does any one race professional and do this??
tried it in my girls rx7 from 2nd to 3rd (not racing)
shifted to neutral and at the same time gave the throttle a punch then shifted into 3rd doing the same thing
no clunks or resistance...it worked perefectly...i can imagine tho if you miss timed it you could do some damage

Damo · 07-09-2005, 03:53 PM

flat shifting is when you keep your foot on the throttle whilst changing gears.

Clutchless shifting is different.

RED_EL_XR8 · 07-09-2005, 03:54 PM

Much easier to ship than a 4 bedroom house.

parawolf · 07-09-2005, 04:24 PM

As Damo said it is without taking your foot off the loud petrol, but it involves regular shift techniques (using a clutch). To a road car, this is mechanical abuse.

Clutchless shifting is different... this is also mechanical abuse, however it is designed to happen on certain race gearboxes which have a 'dog' engagement. There are no syncromesh teeth to chew out and the gearbox will require 'renewing' regularly however it is designed to withstand such abuse. You would not find a dog engagement gearbox on the street.

steven95falc · 07-09-2005, 04:37 PM

Quote:

Originally Posted by gozza

this is shifting with out thw clutch right?
does any one race professional and do this??
tried it in my girls rx7 from 2nd to 3rd (not racing)
shifted to neutral and at the same time gave the throttle a punch then shifted into 3rd doing the same thing
no clunks or resistance...it worked perefectly...i can imagine tho if you miss timed it you could do some damage

Dude i would strongly advise you not to do clutchless changes as itl screw ya gearbox in particular your sincros, just trying to save ya a rebuild

gozza · 07-09-2005, 04:54 PM

u are such a funny guy red...can u bottle it?? u could call it "humour" essence of red

ahh ok
well how does flat shifting work?
i have never changed gears without clutch before but i read or heard somewhere that u could by blippin the throttle at change...but yeah i won't do it anymore
thnx for the comments

gozza · 07-09-2005, 04:54 PM

****never before this one time

klawsterfobik · 07-09-2005, 05:00 PM

well flat shifting as has been stated, is where you keep your foot flat to the floor, slam the clutch in, change gears, let the clutch out and continue going about your business...

If done correctly, a miniscule advantage in time will be gained. As your revs are higher etc etc, but i dare say you could do the same thing by shifting at the right time in your RPM range where your making maximum torque.

neb · 07-09-2005, 06:15 PM

flat shifting can't be too good... if i still floor it while taking my foot off the clutch it will just redline straight away. i think its best to just let off the accelerator a bit but still keep the revs fairly high while changing gears really quickly.. seems to work good for me drag racing.

INJECTED_250 · 08-09-2005, 12:52 AM

if you are quick in gear changes.. The amount the revs go up are very small when flat shifting. but u have to be fast accros the gates, or you will bunce of the limiter all day..

K_Man · 08-09-2005, 01:25 AM

IMO flat shifting is for people who cant drive a manual properly.

LTDHO · 08-09-2005, 08:56 AM

Quote:

Originally Posted by gozza

this is shifting with out thw clutch right?
does any one race professional and do this??
tried it in my girls rx7 from 2nd to 3rd (not racing)
shifted to neutral and at the same time gave the throttle a punch then shifted into 3rd doing the same thing
no clunks or resistance...it worked perefectly...i can imagine tho if you miss timed it you could do some damage

Let me know if ya need a hand chenging the box in ya girls RX7...
That is the quickest way to distroy it.
First learn how to drive with out the clutch by 'rev matching'.
Flat shifting has no street value at all. Also as the throw of the shifter is too great for flat shifting and you will red line the motor.
Also you don't go into neutral - flat shifting goes straight through! :eclipsee_

gozza · 08-09-2005, 10:15 AM

i only did it once
i won't be blowing up any gearboxes thankyou lol
but thnx for the comments cos now i know what flat shifting really is...which i probly wouldn't try anyway

TuMor · 08-09-2005, 11:24 AM

ive only seen this flat shifting when ive been in N/A rice cars, trying their best to chirp the wheels on the gearchange, lol

-Agree with LTDHO, no street value...